Morning Sickness...

Okay so this is my second pregnancy and I’m not sure if I just don’t remember how bad my morning sickness was the first time around or if this is abnormally bad. I’m almost 7 weeks and for the past week I have had crippling nausea (with out vomiting), back pain, severe migraines, bloating, and all I want to do is sleep. I’ve been trying ginger chews, Tylenol, and tea but right after all the symptoms keep rushing back. Is this a sign something’s wrong?! If anyone has any advice I will take it! I haven’t been able to eat because nothing sounds appealing and if I do eat I get even more nauseous. HELP!!!